US5695716A - Austenitic alloys and use thereof - Google Patents

Austenitic alloys and use thereof Download PDF

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Publication number
US5695716A
US5695716A US08/654,451 US65445196A US5695716A US 5695716 A US5695716 A US 5695716A US 65445196 A US65445196 A US 65445196A US 5695716 A US5695716 A US 5695716A
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weight
maximum
alloy according
chromium
component
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US08/654,451
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Michael Kohler
Ulrich Heubner
Kurt-Wilhelm Eichenhofer
Michael Renner
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Bayer AG
Krupp VDM GmbH
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Bayer AG
Krupp VDM GmbH
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    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C30/00—Alloys containing less than 50% by weight of each constituent
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/001—Ferrous alloys, e.g. steel alloys containing N
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/42—Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten

Definitions

  • Austenitic special steels with up to 22% nickel, up to 25% chromium and nitrogen contents of 0.2 to 0.5 wt. % are described in Werkstoffe und Korrosion 44, 83-88 (1993) "Avesta 654 SMO TM-A new nitrogen-enhanced superaustenitic stainless steel".
  • EP-A 249 792 claims the use of alloys consisting of 21 to 55% chromium, 0 to 30% iron, 0 to 5% tungsten and 45 to 79% Ni in concentrated sulphuric acid.
  • the object of the present invention is to provide alloys which are usable in many applications, which are straightforwardly workable and which have low corrosion rates.
  • These preferred alloys are preferably used as wrought materials for the production of semi-finished products, such as for example sheet, strip, bar, wire, forged articles, pipes, etc.
  • austenitic alloys of the following composition:
  • austenitic alloys of the following composition:
  • the alloys according to the invention may also be used as materials for articles which are resistant to mixtures of sulphuric acid and sodium dichromate and/or chromic acid, comprising 0.1 to 40 wt. %, preferably 0.3 to 20 wt. % nitric acid and 50 to 90 wt. % sulphuric acid at up to 130° C. or comprising 0.01 to 15 wt. % hydrofluoric acid and 80 to 98 wt. % sulphuric acid at up to 180° C. or comprising up to 25 wt. % nitric acid and up to 10 wt. % hydrofluoric acid at up to 80° C.
  • the alloys according to the invention have adequate resistance to and stability against organic acids, such as for example formic acid and acetic acid.
  • the alloys according to the invention may also be used as materials for articles which are resistant to cooling water at temperatures up to the boiling point and to sea water at up to 50° C.
  • the alloys according to the invention are characterized in terms of workability by an unusually low precipitation tendency on exposure to heat.
  • This behavior is exceptionally advantageous in the production and further processing of semi-finished products, for example when shaping dished boiler heads, and in the production of welded joints.
  • This behavior is in particular dearly evident from the time/temperature/sensitization diagrams (charts 1, 2).
  • This material property is also significant in the behavior of weld seams, which require no final heat treatment after production, and in the production of castings.
  • Example 9 Mass loss rates were also compared in phosphoric acid solutions. The results obtained are reproduced in Example 9.
  • the alloys according to the invention are compared with prior art materials specially developed for handling phosphoric acid solutions. While the prior art material Alloy 904 L (3) can be considered adequate in solution 1, such is not the case in solution 2. While the corrosion resistance of the alloys according to the invention is not substantially different to that of the material Alloy G-30 (12), the low corrosion loss of the alloys according to the invention is, however, achieved with substantially smaller quantities of expensive alloying additives.
  • Example 10 shows corrosion behavior in nitric/hydrofluoric acid mixtures.
  • the alloys according to the invention are far superior to prior art alloys.
  • Example 15 shows the advantageous corrosion behavior in chromic acid of the alloys according to the invention compared with known alloys.
  • hydrofluoric acid from sulphuric acid and fluorite, as well as hydrofluoric acid processing and processes using hydrofluoric acid as catalyst,
  • pickling baths containing hydrofluoric, sulphuric and/or nitric acids for example for nickel alloys and stainless steels or in electroplating and electroforming technology
  • ISO/DIS 8407 Metals and alloys--Procedure for removal or corrosion products from test specimens, submitted 1985-11-28 by ISO/TC 156.
  • Materials 17, 15 and 16 are typical materials for this use.
  • Solution 1 75 wt. % H 3 PO 4 ; 80° C., 14 days
  • Solution 2 75 wt. % H 3 PO 4 , 0.63 wt. % F - , 0.3 wt. % Fe 3+ , 14 mmol/l Cl - ; 80° C., 14 days

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Heat Treatment Of Steel (AREA)
  • Glass Compositions (AREA)
  • Materials For Medical Uses (AREA)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)
  • Powder Metallurgy (AREA)
US08/654,451 1993-12-10 1996-05-21 Austenitic alloys and use thereof Expired - Lifetime US5695716A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US08/654,451 US5695716A (en) 1993-12-10 1996-05-21 Austenitic alloys and use thereof

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE4342188.1 1993-12-10
DE4342188A DE4342188C2 (de) 1993-12-10 1993-12-10 Austenitische Legierungen und deren Verwendung
US35019394A 1994-12-05 1994-12-05
US08/654,451 US5695716A (en) 1993-12-10 1996-05-21 Austenitic alloys and use thereof

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US35019394A Continuation 1993-12-10 1994-12-05

Publications (1)

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US5695716A true US5695716A (en) 1997-12-09

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US (1) US5695716A (da)
EP (1) EP0657556B1 (da)
JP (1) JP3355510B2 (da)
KR (1) KR950018592A (da)
AT (1) ATE176690T1 (da)
AU (1) AU694456B2 (da)
CA (1) CA2137522C (da)
DE (2) DE4342188C2 (da)
DK (1) DK0657556T3 (da)
ES (1) ES2128495T3 (da)
FI (1) FI107168B (da)
PL (1) PL179404B1 (da)
TW (1) TW363084B (da)
ZA (1) ZA949832B (da)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6406572B1 (en) * 1997-10-31 2002-06-18 Abb Research Ltd Process for the production of a workpiece from a chromium alloy, and its use
WO2002101106A1 (en) * 2001-06-08 2002-12-19 Outokumpu Oyj Method for the protection against corrosion of a steel part made of austenitic or semi-austenitic steel during the production of sulfuric acid
US20040038414A1 (en) * 2000-09-13 2004-02-26 Winkler Wilfried M. Method for the pyrolysis of mercuric chloride for the subsquent analysis of the mercury
US6709528B1 (en) * 2000-08-07 2004-03-23 Ati Properties, Inc. Surface treatments to improve corrosion resistance of austenitic stainless steels
US6764647B2 (en) 2000-06-30 2004-07-20 Choeller-Bleckmann Oilfield Technology Gmbh & Co. Kg Corrosion resistant material
US20040202569A1 (en) * 2003-04-14 2004-10-14 General Electric Company Precipitation-strengthened nickel-iron-chromium alloy and process therefor
US20060047169A1 (en) * 2004-08-26 2006-03-02 Alexander Moller Preparation of 2-hydroxy-4-methylthiobutyric acid
US20100133096A1 (en) * 2006-06-28 2010-06-03 Hydrogen Technologies As Use of Austenitic Stainless Steel as Construction Material in a Device or Structural Component Which is Exposed to an Oxygen and/or Hydrogen and/or Hydrofluoric Acid Environment
US20100147247A1 (en) * 2008-12-16 2010-06-17 L. E. Jones Company Superaustenitic stainless steel and method of making and use thereof
US9108121B2 (en) 2008-12-01 2015-08-18 Rhodia Operations Plant for the crystallization of adipic acid
US10233522B2 (en) * 2016-02-01 2019-03-19 Rolls-Royce Plc Low cobalt hard facing alloy
US10233521B2 (en) * 2016-02-01 2019-03-19 Rolls-Royce Plc Low cobalt hard facing alloy
EP3438304A4 (en) * 2016-03-30 2019-12-18 Hitachi, Ltd. CR-BASED TWO-PHASE ALLOY AND PRODUCT THEREOF
WO2020046735A1 (en) 2018-08-29 2020-03-05 Chemetics Inc. Austenitic stainless alloy with superior corrosion resistance
CN112941413A (zh) * 2021-02-01 2021-06-11 南京理工大学 一种抗辐照核电反应堆压力容器合金

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Publication number Priority date Publication date Assignee Title
DE10002795A1 (de) * 2000-01-24 2001-08-02 Basf Ag Werkstoff für eine Anlage zur Herstellung von wasserfreier Ameisensäure
EP1717330B1 (en) * 2004-02-12 2018-06-13 Nippon Steel & Sumitomo Metal Corporation Metal tube for use in carburizing gas atmosphere
EP2228578A1 (en) * 2009-03-13 2010-09-15 NV Bekaert SA High nitrogen stainless steel wire for flexible pipe
JP6582904B2 (ja) * 2015-11-12 2019-10-02 東洋インキＳｃホールディングス株式会社 電磁誘導加熱用ホットメルト接着シート、それを用いた接着構造物、及び接着構造物の製造方法
WO2017168640A1 (ja) * 2016-03-30 2017-10-05 株式会社日立製作所 クロム基二相合金製造物およびその製造方法
CN110295276A (zh) * 2018-03-21 2019-10-01 吉林常春高氮合金研发中心有限公司 提高高氮钢船舰用螺旋桨耐腐蚀性能的方法
CN109338345A (zh) * 2018-11-30 2019-02-15 中国科学院金属研究所 一种医用高氮无镍不锈钢的环保型表面钝化处理方法
DE102018133255A1 (de) 2018-12-20 2020-06-25 Voestalpine Böhler Edelstahl Gmbh & Co Kg Superaustenitischer Werkstoff

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US3565611A (en) * 1968-04-12 1971-02-23 Int Nickel Co Alloys resistant to corrosion in caustic alkalies
US3758296A (en) * 1970-10-29 1973-09-11 Lewis & Co Inc Charles Corrosion resistant alloy
GB1534926A (en) * 1975-06-24 1978-12-06 Avesta Jernverks Ab Stainless steel
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JPS5521547A (en) * 1978-08-01 1980-02-15 Hitachi Metals Ltd Austenite stainless steel having high strength and pitting corrosion resistance
US4410489A (en) * 1981-07-17 1983-10-18 Cabot Corporation High chromium nickel base alloys
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JPS5521547A (en) * 1978-08-01 1980-02-15 Hitachi Metals Ltd Austenite stainless steel having high strength and pitting corrosion resistance
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Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6616779B2 (en) 1997-10-31 2003-09-09 Alstom Workpiece made from a chromium alloy
US6406572B1 (en) * 1997-10-31 2002-06-18 Abb Research Ltd Process for the production of a workpiece from a chromium alloy, and its use
US6764647B2 (en) 2000-06-30 2004-07-20 Choeller-Bleckmann Oilfield Technology Gmbh & Co. Kg Corrosion resistant material
US6709528B1 (en) * 2000-08-07 2004-03-23 Ati Properties, Inc. Surface treatments to improve corrosion resistance of austenitic stainless steels
US20040038414A1 (en) * 2000-09-13 2004-02-26 Winkler Wilfried M. Method for the pyrolysis of mercuric chloride for the subsquent analysis of the mercury
WO2002101106A1 (en) * 2001-06-08 2002-12-19 Outokumpu Oyj Method for the protection against corrosion of a steel part made of austenitic or semi-austenitic steel during the production of sulfuric acid
US20040238375A1 (en) * 2001-06-08 2004-12-02 Karl-Heinz Daum Method for the protection against corrosion of a steel part made of austentic or semi-austentic steel during the production of sulfuric acid
US7118636B2 (en) 2003-04-14 2006-10-10 General Electric Company Precipitation-strengthened nickel-iron-chromium alloy
US20040202569A1 (en) * 2003-04-14 2004-10-14 General Electric Company Precipitation-strengthened nickel-iron-chromium alloy and process therefor
US7148379B2 (en) * 2004-08-26 2006-12-12 Degussa Ag Preparation of 2-hydroxy-4-methylthiobutyric acid
US20060047169A1 (en) * 2004-08-26 2006-03-02 Alexander Moller Preparation of 2-hydroxy-4-methylthiobutyric acid
US20100133096A1 (en) * 2006-06-28 2010-06-03 Hydrogen Technologies As Use of Austenitic Stainless Steel as Construction Material in a Device or Structural Component Which is Exposed to an Oxygen and/or Hydrogen and/or Hydrofluoric Acid Environment
US9108121B2 (en) 2008-12-01 2015-08-18 Rhodia Operations Plant for the crystallization of adipic acid
US20100147247A1 (en) * 2008-12-16 2010-06-17 L. E. Jones Company Superaustenitic stainless steel and method of making and use thereof
US8430075B2 (en) 2008-12-16 2013-04-30 L.E. Jones Company Superaustenitic stainless steel and method of making and use thereof
US10233522B2 (en) * 2016-02-01 2019-03-19 Rolls-Royce Plc Low cobalt hard facing alloy
US10233521B2 (en) * 2016-02-01 2019-03-19 Rolls-Royce Plc Low cobalt hard facing alloy
EP3438304A4 (en) * 2016-03-30 2019-12-18 Hitachi, Ltd. CR-BASED TWO-PHASE ALLOY AND PRODUCT THEREOF
WO2020046735A1 (en) 2018-08-29 2020-03-05 Chemetics Inc. Austenitic stainless alloy with superior corrosion resistance
CN112771181A (zh) * 2018-08-29 2021-05-07 凯密迪公司 具有优越耐腐蚀性的奥氏体不锈钢合金
CN112941413A (zh) * 2021-02-01 2021-06-11 南京理工大学 一种抗辐照核电反应堆压力容器合金

Also Published As

Publication number Publication date
EP0657556B1 (de) 1999-02-10
ATE176690T1 (de) 1999-02-15
ES2128495T3 (es) 1999-05-16
FI945771A (fi) 1995-06-11
EP0657556A1 (de) 1995-06-14
KR950018592A (ko) 1995-07-22
ZA949832B (en) 1995-08-22
TW363084B (en) 1999-07-01
DE4342188A1 (de) 1995-06-14
CA2137522C (en) 2004-04-27
DK0657556T3 (da) 1999-09-20
DE59407804D1 (de) 1999-03-25
PL179404B1 (pl) 2000-08-31
AU694456B2 (en) 1998-07-23
FI945771A0 (fi) 1994-12-08
DE4342188C2 (de) 1998-06-04
JPH07197181A (ja) 1995-08-01
JP3355510B2 (ja) 2002-12-09
PL306180A1 (en) 1995-06-12
FI107168B (fi) 2001-06-15
AU8030794A (en) 1995-06-15
CA2137522A1 (en) 1995-06-11

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